-- @testpoint: opengauss关键字parameter_name(非保留)，作为函数名,部分测试点合理报错

--关键字不带引号-成功
drop function if exists parameter_name;
create function parameter_name(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带双引号-成功
drop function if exists "parameter_name";
create function "parameter_name"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带单引号-合理报错
drop function if exists 'parameter_name';
create function 'parameter_name'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `parameter_name`;
create function `parameter_name`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function if exists parameter_name(integer);
drop function if exists "parameter_name"(integer);